The Letter C Puzzle

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Across
  1. 2. A dark-colored petrel in Bermuda, now nearly extinct
  2. 4. A soft white, gray or buff limestone
  3. 5. A light narrow boat with both ends sharp
  4. 7. A student at a military school
  5. 8. A secure place of storage
  6. 10. A carriage for hire
Down
  1. 1. A tooth on the rim of a wheel or gear
  2. 2. A bread like dough baked in small flat shapes
  3. 3. The short feathers covering the shoulders of a fowl
  4. 4. An artificial water way
  5. 5. The plural of cactus
  6. 6. A barred cell for confining prisoners
  7. 8. A private room on a ship or boat
  8. 9. A natural chamber in the earth
  9. 10. An open usually bowl-shaped drinking vessel